A collection of sun path diagrams are available in the following 101 Diagramss to help you learn about the sun path. The images that we have collected in the following images below show the sun path diagrams components and illustration. Sun path, sometimes also called day arc, refers to the daily and seasonal arc-like path that the Sun appears to follow across the sky as the Earth rotates and orbits the Sun. The first sun path diagram is posted in the following image.
The sun path diagram above shows the sun path in 40° N latitude. The Sun’s path affects the length of daytime experienced and amount of daylight received along a certain latitude during a given season. The relative position of the Sun is a major factor in the heat gain of buildings and in the performance of solar energy systems. Accurate location-specific knowledge of sun path and climatic conditions is essential for economic decisions about solar collector area, orientation, landscaping, summer shading, and the cost-effective use of solar trackers. Sun path diagrams can tell you a lot about how the sun will impact your site and building throughout the year. Stereographic sun path diagrams can be used to read the solar azimuth and altitude for a given location.
Azimuth lines are the Azimuth angles that run around the edge of the diagram while the altitude lines are the altitude angles which are represented as concentric circular dotted lines that run from the center of the diagram out. Date lines start on the eastern side of the graph and run to the western side and represent the path of the sun on one particular day of the year. Hour lines or annalema are shown as figure-eight-type lines that intersect the date lines and represent the position of the sun at a specific hour of the day. The intersection points between date and hour lines give the position of the sun.
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